baber/WOPTO huggingface dataset:
Patent CA-2152482-C (CA)
Title: Track switch for movable wall panels
Inventor: OWENS N DOUGLAS
IPC: E05D15/06
Filed: 1993-12-21
Granted: 1999-08-31
Abstract: A track switch (20) for use with a track intersection (10) for movable wall panels wherein the track intersection (10) has a first track path (16) and a second track path (18) for the movable wall panels to traverse. The switch (20) includes an actuator (26) movable between a first actuator position and a second actuator position upon actuation by a power source (24). The switch (20) also includes a diverter (32) operatively connected to the actuator (26) and selectively movable between a first diverter position defining the first track path (16) and a second diverter position defining a second track path (18). Movement of the actuator (26) between the first and second positions causes the diverter (32) to move between the first and second diverter positions, respectively. The actuator (26) includes a biasing mechanism (28, 30) for biasing the diverter (32) toward the selected diverter position. The biasing mechanism (28, 30) is operatively connected to the diverter (32) such that, as the diverter (32) is in or moving toward the selected diverter position, the biasing mechanism (28, 30) allows the diverter (32) to move toward the non-selected diverter position upon application of a force against the diverter (32) toward the non-selected diverter position.
Patent CA-2153373-C (CA)
Title: Signal oscillator, fm modulation circuit using the same, and fm modulation method
Inventor: ICHIHARA MASAKI
IPC: H03C3/40
Filed: 1995-07-06
Granted: 1998-12-15
Abstract: A coefficient circuit 11 multiplies a digitized input modulation signal by a constant and outputs the multiplied signal. Delay circuits 12 and 13 delay the discrete in-phase input signal and discrete quadrature-phase input signal by 1 sampling cycle, respectively. A multiplying circuit 14 multiplies the multiplied signal by the 1-sampling cycle delayed discrete quadrature-phase input signal. The multiplying circuit 15 multiplies the multiplied signal by the 1-sampling cycle delayed discrete in-phase input signal. The adder circuit 16 adds the multiplication results of the multiplying circuit 14 to the 1-sampling cycle delayed discrete in-phase input signal and outputs the addition result as the discrete in-phase input signal. The subtracting circuit 17 subtracts the multiplication results of the multiplying circuit 15 from the 1-sampling cycle delayed discrete quadrature-phase input signal and outputs the subtraction result as the discrete quadrature-phase input signal.
Patent CA-2156271-C (CA)
Inventor: BERDUT ELBERTO
IPC: B60L13/10
Filed: 1994-04-13
Granted: 2006-07-04
Abstract: The invention relates to first and second magnetic units (34, 35) having a plurality of groups of permanent magnets (51) arranged in side by side relationship, with each plurality being separated from an adjacent plurality by a magnetically permeable member (52) to focus the lines of flux. These groups are separated from their supports by a non-magnetic member (58). The second plurality is spaced adjacent the first plurality with oppositely facing poles, so that they attract each other to levitate a vehicle (10). A hydraulic unit (45) is used to adjust the air gap between respective pairs of the units (34, 35). The units (34, 35) can also be used as the main components of a linear motor (19) so as to propel the vehicle (10).
Patent CA-2158382-C (CA)
Inventor: OSADA TAKAHIRO
IPC: C09D11/18
Filed: 1995-09-15
Granted: 1999-03-16
Abstract: A non-aqueous ink for a ball point pen is disclosed herein which is accompanied by the feature of the non-aqueous ink excellent in the so-called cap-off performance that a writing performance does not deteriorate even when the pen is allowed to stand, with a cap being removed, and the feature of an aqueous ink that a low writing pressure can be used and blobbing does not occur.  This ink comprises an organic solvent having a vapour pressure of 0.2 mmHg (20°C) or less, a colorant and a coagulant and has a non-Newtonian viscosity index of 0.2 to 0.5 and a viscosity of 200 mPa.s (25°C, 50 rpm) or less.  Furthermore, the ink is characterized by containing an autolyophobic vehicle in which a contact angle to the surface of a material such as stainless steel or bronze having a high surface free energy is in the range of 5 to 40°.
Patent CA-2159806-C (CA)
Title: Smelting of carbon-containing material
Inventor: FLOYD JOHN MILLICE
IPC: A62D101/20
Filed: 1994-04-05
Granted: 2005-07-05
Abstract: A process for treating carbon-containing material contaminated with toxic elements utilises smelting of the material in a top-submerged lancing reactor. The material has its carbon content present as elemental or free carbon. Smelting is conducted so as to form, or in the presence of, a fluid slag. In the course of smelting, free-oxygen-containing gas is injected into the slag by top-submerged injection, to combust the carbon content of the material. Volatilizable toxic elements are discharged in reactor off-gas, while noa-volatilizable elements are substantially fully incorporated into the slag.
Patent CA-2163442-C (CA)
Inventor: WESTERBERG EUGENE R
IPC: F24C7/04
Filed: 1994-05-20
Granted: 2003-07-29
Abstract: An oven for cooking with light having wavelengths in the visible, near visib le, and infra-red spectral ranges uses one or more quart z halogen tungsten lamps or quartz arc bulbs positioned above and below the fo od item. Uniform cooking of the food item is achieved by positioning the lamps asymmetrically with respect to the midline of the oven  and by rotating the food item on a rack during the cook ing cycle.
Patent CA-2165449-C (CA)
Title: Endothermic reaction apparatus and method
Inventor: RUHL ROBERT CHARLES
IPC: B01J8/04
Filed: 1994-06-14
Granted: 2002-10-29
Abstract: A compact endothermic reaction apparatus employing metallic reaction tubes (28; 152) in a close-pack arrangement using offset nozzle tubes (90; 167) and an air distribution plate (68; 160) for introducing fuel and air into a combustion chamber to produce long and thin flames thereby to avoid excessive localizod heating of the reaction tubes and provide high reaction tube life expectancy.  Also, excessive localized heating of the reaction tubes at the inlet ends of exhaust tubes (94; 172) is eliminated and provision is made for preventing buckling of individual reaction tubes thatr may be subjected to higher than average reaction tube temperatures.
Patent CA-2169173-C (CA)
Title: Methods for stimulating erythropoiesis using thrombopoietin
Inventor: KAUSHANSKY KENNETH
IPC: A61K38/18
Filed: 1995-02-09
Granted: 2002-10-15
Abstract: Methods for stimulating erythropoiesis using thrombopoietin and erythropoietin are provided. The methods provided may be used to stimulate erythropoiesis in bone marrow and peripheral blood cells and in vitro and in  vivo. In addition, methods for treatment of thrombocytopenia and anemia in patients a re disclosed using thrombopoietin and erythropoietin.
Patent CA-2172440-C (CA)
Inventor: DUSSAN V ELIZABETH
IPC: E21B47/10
Filed: 1996-03-22
Granted: 2008-08-05
Abstract: The invention relates to a method for producing, in a hydrocarbon well, a signal indicative of a local flow parameter of a multiphase fluid, comprising the steps of placing at least one local sensor in the fluid and producing a signal whose level is characteristic of the phase in which said sensor is immersed, said signal being generated at a spike whose radius of curvature is less than 100 microns. The invention is applicable to determining hold-ups of different phases of the fluid.
Patent CA-2173066-C (CA)
Title: Hot-rolling method of steel piece joint during continuous hot-rolling
Inventor: TAMAI YOSHIKIYO
IPC: B21B15/00
Filed: 1996-03-29
Granted: 2001-01-23
Abstract: A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling facility provided with a plurality of stands having a bending function of a work roll.  The method involves estimating the variation of the rolling force occurring during rolling the joint of the steel pieces at the non-stationary zone caused by said joint, calculating the changing bending force of the work roll during rolling the joint of the steel pieces from the estimated variation of the rolling force, and determining the pattern for changing the bending force taking account of said changing force, and rolling the joint of the steel pieces by regulating the bending force in response to said pattern over at least one stand, while tracking down the joint of the steel piece immediately after joining.
Patent CA-2177874-C (CA)
Title: Multi-channel optical fiber communication system
Inventor: CHRAPLYVY ANDREW R
IPC: H04J14/02
Filed: 1996-05-31
Granted: 2000-06-20
Abstract: A significant part of signal-to-noise degradation in WDM optical fiber communications, due to Raman crosstalk, is found to be deterministic in nature. Shaping of amplifier output to offset depletion of high frequency channels improves signal capacity by an order of magnitude.
Patent CA-2180312-C (CA)
Inventor: TANK KLAUS
IPC: E21C37/24
Filed: 1996-07-02
Granted: 2006-05-30
Abstract: A tool component is provided which has particular application in mining picks and drag bits. The component comprises an abrasive compact having a flat working surface presenting a cutting edge around its periphery, and an opposite surface bonded to a cemented carbide substrate along an interface. A recess is provided which extends into the abrasive compact from the interface and is filled with abrasive compact. The recess has a central portion and an outer portion which completely surrounds, and is shallower than the central portion. The central portion defines, in plan, at least one substantially wedge-shaped configuration, the configuration having a narrow end coincident with a side surface of the component and the sides extending into the component and diverging from the narrow end.
Patent CA-2180929-C (CA)
Title: Shale containment unit for a drilling rig
Inventor: HERTZ JOSEPH DWAYNE
IPC: E21B11/00
Filed: 1996-07-10
Granted: 1998-12-29
Abstract: A shale containment unit  for  a drilling rig which includes a skid having a first side, a second side, a first end and a second end.  An end wall extends entirely across the first end of the skid.  A pair of parallel sidewalls extend from the first end of the skid at least partially along the first side and the second side.  A floor is secured to the end wall and sidewalls.   A liquid retaining dike transversely extends between the sidewalls.  The dike has a top ridge with a first slope sloping downwardly toward the first end of the skid from the top ridge to the floor.  A second slope slopes downwardly from the top ridge toward the second end of the skid.
Patent CA-2181039-C (CA)
Inventor: NEWELL EDWIN R
IPC: H01H1/58
Filed: 1995-07-21
Granted: 2005-09-13
Abstract: A manually actuatable integrated contact module connecting to an out- put access module by means of a com- mon communications link. The inte- grated contact module has an electrical contact, a logic circuit, a communica- tions circuit and a communications ter- minal mounted on a common printed cir- cuit board. The printed circuit board pro- vides communication between the elec- trical contact and the logic circuit, be- tween the logic circuit and the commu- nications circuit, and between the com- munications circuit and the communica- tions terminal. The printed circuit board is enclosed within a protective housing. A contact operator is slidably mounted with respect to the printed circuit board such that it is partially enclosed within the housing and movable between a first position and a second position. An oper- ator interface device is mounted on one side of a control panel and the integrated contact module is attached to the opera- tor interface device on the opposite side of the control panel such that the opera- tor interface device is in communication with that portion of the contact operator outside the protective housing. The con- tact operator, in response to movement of the operator interface device, cau ses the contact to change state thereby initiating a sig nal to be processed by the logic circuit and communications circuit prior to being pla ced on the common communications link.
Patent CA-2184569-C (CA)
Inventor: STRANG WARD E
IPC: H05K7/20
Filed: 1996-08-30
Granted: 2006-06-06
Abstract: An electrical receptacle assembly with an enhanced heat dissipation arrangement includes a housing having a front side with plug contact receiving openings and a rear side spaced from the front side, a circuitboard mounted in the housing between the front and rear sides thereof and spaced from the rear side, a plurality of varistors mounted to the circuitboard and disposed between the circuitboard and the rear side of the housing, and a mounting bridge fitted over the exteriors of the rear side and top and bottom ends of the housing for mounting the housing to an outlet box and providing a heat sink for dissipating from the housing heat generated by the varistors. The varistors are mounted to the circuitboard in the housing on the front side thereof opposite to the rear side where the electrical components are mounted to the circuitboard. The varistors have leads which are bent into G-shaped configurations so that portions of the leads extend from the front side to the rear side of the circuitboard around the peripheral edge thereof so as to place the varistors along the rear side of the circuitboard adjacent to the interior rear side of the housing in close proximity to the mounting bridge for rapid heat dissipation and remote from electrical components mounted on the front side of the circuitboard. A heat barrier plate made of heat-retardant material is positioned between the varistors and rear side of the circuitboard to impede heat produced by the varistors from reaching and impinging upon the circuitboard. The leads of the varistors also extend around the periphery of the barrier plate.
Patent CA-2185071-C (CA)
Title: Electronic shelf labels for mounting in c channels of retail shelves and method for mounting
Inventor: WILKUS STEPHEN A
IPC: A47F5/00
Filed: 1996-09-09
Granted: 2000-04-04
Abstract: An electronic shelf label has a housing which is formed oversized and later shaped to fit securely into a C channel of a targeted shelf, without requiring any additional hardware fixtures for mounting.
Patent CA-2188199-C (CA)
Inventor: FRECHETTE ROBERT
IPC: A61M25/16
Filed: 1996-10-18
Granted: 2007-09-04
Abstract: The guidewire assembly includes a distal tip section comprising a core wire, a mushroom shaped head fixed to a distal end of the core wire, and a coiled radiopaque wire having a distal end portion fused to the head and a proximal necked down portion which necks down to proximal end coils forming a proximal end of the coiled radiopaque wire. The proximal end coils are received on a portion of the core wire and fixed thereto by a flexible material. The method for making a guidewire assembly having increased flexibility and a secure connection between a coiled wire and a core wire comprises the steps of: forming a coiled radiopaque wire with a larger-in-diameter distal portion, a necked down middle portion, and a smaller-in-diameter proximal portion having a plurality of end coils; winding the end coils on a mandrel,so that the end coils can form the proximal end portion of the coiled wire; pushing the end coils onto a tapered portion of a core wire; placing a flexible sleeve over the end coils; heat shrinking the flexible sleeve at one temperature; placing an outer sleeve over the flexible sleeve; and, heat shrinking the outer sleeve at a higher temperature to melt the flexible sleeve causing it to bond onto the tapered portion between the end coils and to the end coils.
Patent CA-2190570-C (CA)
Title: Process for producing 3-amino-2-oxo-1-halogenopropane derivatives
Inventor: HONDA YUTAKA
IPC: C07C223/02
Filed: 1996-11-18
Granted: 2005-05-03
Abstract: 3-Amino-2-oxo-1-halogenopropane derivatives are prepared by reacting a protected amino acid with an alkali metal enolate of an alkyl acetate with a halogenating agent for halogenation of the 2-position, or by reacting a protected amino acid with an alkali metal enolate of an alkyl halogenoacetate, to form a 4-amino-3-oxo-2-halogenobutanoic acid ester derivative which is then hydrolyzed and decarboxylated. The 3-amino-2-oxo-1-halogenopropane derivatives obtained in accordance with the invention can easily be converted to 3-amino-1,2-epoxypropanes that are important as intermediates for pharmaceutical preparations including HIV protease inhibitors and certain enzyme inhibitors.
Patent CA-2192445-C (CA)
Title: Ensemble joint a rotule dont les chemins des roulements a billes sont etages
Inventor: UNGCHUSRI TEP
IPC: F16C19/02
Filed: 1995-06-12
Granted: 2008-12-09
Abstract: Cette invention se rapporte à un ensemble de chemins de roulements à billes conçu pour être utilisés dans un joint à rotule (110), se caractérisant par un raccord mâle (112) ayant un axe central (126), une première extrémité (sans numéro de référence), ainsi que plusieurs gorges annulaires externes (120) ayant chacune une section transversale généralement courbe et disposées dans un plan respectif généralement perpendiculaire à l'axe central. Ces gorges externes (120) possèdent chacune un rayon généralement constant mesuré par rapport à l'axe central, de sorte que chaque gorge externe (120) présente un rayon plus grand que chacune des gorges externes adjacentes plus proches de la première extrémité (sans numéro de référence). Est en outre prévu un raccord femelle (114) s'alignant coaxialement sur le raccord mâle (112) et destiné à recevoir le raccord mâle et à s'adapter autour dudit raccord mâle. Le raccord femelle (114) présente une première extrémité (sans numéro de référence) et plusieurs gorges annulaires internes (118) ayant chacune une section transversale généralement courbe et disposées dans un plan respectif généralement perpendiculaire à l'axe central en question. Ces gorges internes correspondent chacune à l'une des gorges externes (120) et forment avec elles un chemin de roulement à billes courbe. Dans chacun de ces chemins pour roulements à billes viennent se loger plusieurs roulements à billes (34, 35, 36), destinés à faciliter la rotation relative des raccords mâle (112) et femelle (114) autour de l'axe central (126).
Patent CA-2198331-C (CA)
Inventor: ERDMANN GERHARD
IPC: B66C23/697
Filed: 1997-02-24
Granted: 2006-04-25
Abstract: A device for guiding an inner telescopic part at the shaft area inside an outer telescopic part of a telescopic boom of a crane, comprising a collar at the front end of the outer telescopic part, and sliders which are arranged symmetrically at the bottom of said collar at both sides of its longitudinal axis and are supported movably in the collar plane on a tension belt fixed to the collar.
Patent CA-2202349-C (CA)
Title: Difluorooxymethane derivative and liquid crystal composition
Inventor: NAKAGAWA ETSUO
IPC: C09K19/46
Filed: 1995-10-13
Granted: 2003-01-07
Abstract: In order to provide novel compounds which are useful as liquid crystal materials for low voltages in several liquid crystal displays, have a large dielectric anisotropy, and are low in viscosity; and to improve characteristics of liquid crystal compositions, difluorooxymethane derivatives expressed by the following general formula (I) and liquid crystal compositions containing the compound are proposed (see formula I) wherein each of ~, m, and n is 0 or 1, rings A1 to A3 independently represent six-membered rings such as trans-2,4-cyclohexylene and 1,4-phenylene, Z1 to Z3 independently represent a bonding group such as covalent bond and -CH2CH2-, L1 to L4 independently represent.hydrogen atom or halogen atom, and X represents a group such as halogen atom and OCF3.        They are useful as liquid crystal materials for low voltages in several modes such as active matrix mode and STN mode.
Patent CA-2203569-C (CA)
Title: Nucleotide sequence encoding the enzyme i-scei and the uses thereof
Inventor: CHOULIKA ANDRE
IPC: C12N15/09
Filed: 1995-11-06
Granted: 2012-07-10
Abstract: An isolated DNA encoding the enzyme I-SceI is provided. The DNA sequence can be incorporated in cloning and expression vectors, transformed cell lines and transgenic animals. The vectors are useful in gene mapping and site directed insertion of genes.
Patent CA-2207351-C (CA)
Title: Dental material based on polymerizable waxes
Inventor: VOLKEL THOMAS
IPC: A61K6/083
Filed: 1997-06-09
Granted: 2000-12-26
Abstract: The invention relates to dental materials based on wax-like polymerizable substances.  The dental materials contain (a) 0 to 70 wt.% of at least one polymerizable monomer and/or oligomer; (b) 0.1 to 5 wt.% of at least one polymerization initiator; (c) 0 to 60 wt.% of one or more fillers, (d) at least 20 wt.% of the wax-like polymerizable substance.  They can be kneaded at room temperature and can be modelled in non-polymerized state without additional heating, like conventional waxes.  On polymerization, the wax component is covalently incorporated into the polymer. The dental materials are suitable for producing temporary and permanent dental prostheses.
Patent CA-2210530-C (CA)
Inventor: SPIEGEL RICHARD V
IPC: G05D16/04
Filed: 1995-11-17
Granted: 2003-01-07
Abstract: A transmission fluid cooling system (20) includes a cooler-bypass unit (40) having a banjo bolt relief valve (44). The banjo bolt relief valve (44) includes a head portion (48) and a body portion (50). A relief valve (70) is incorporated into the body portion (50). A ball (72) is biased against the valve seat (71) toward the head portion (48) by a spring (74) within the body portion (50). When the transmission fluid is cool and viscous, pressure buildup in the head portion (48) overcomes the spring (74) bias of the ball (72) against the valve seat (71), permitting the flow of transmission fluid through the cooler-bypass unit (40), bypassing the transmission fluid cooling unit (24).
Patent CA-2215206-C (CA)
Inventor: ANDERSON PATRICIA ANNE
IPC: C11D3/06
Filed: 1996-03-14
Granted: 2008-02-12
Abstract: Tableted detergents are formed from a hydrated phosphate sequestrant, causti c, free water and, optionally, fillers by combining the products and tableting the components without permitting the tablets or detergent to exceed 50 .degree.C. In a preferred embodiment where fillers are incorporated, all free water is combined with the phosphate sequestrants , both anhydrous and hydrated. After the water has been absorbed by the sequestrants, the filler and caustic can be added and the detergent tableted. The free water is bound sufficiently tightly to the phosphate sequestrant that it does not rapidly react with the anhydrous caustic, maintaining the temperature at less than 50 .degree.C, which in turn prevents the water of hydration in the phosphates from reacting and thereby weakening the formed tablets. The tablets can also be formed by combining the filler with the phosphate sequestrants and water and subsequently adding caustic if the detergent is cooled and its temperature maintained below 50 .degree.C until the hydration reaction with the caustic and free water is complete.